[clang] [Clang][Sema] Reject array prvalue operands (PR #140702)

[via cfe-commits]

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@@ -7639,6 +7639,8 @@ def warn_param_mismatched_alignment : Warning<
 
 def err_objc_object_assignment : Error<
   "cannot assign to class object (%0 invalid)">;
+def err_typecheck_array_prvalue_operand : Error<
+  "array prvalue is not permitted">;
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Sirraide wrote:

Hmm, in that case, maybe just ‘operand cannot be an array prvalue’. I would prefer at least including the word ‘operand’ so it’s clear that the problem is that you’re passing an array prvalue to this operator, because at the moment the diagnostic makes it sound like array prvalues aren’t permitted *at all*.

https://github.com/llvm/llvm-project/pull/140702